package main 

import (
	"fmt"
	"unsafe"
)

func main(){

	var i int=10

	fmt.Printf("i的地址是:%v\n",&i)
	fmt.Printf("i的内容:%v\n",i)

	var j *int
	j = &i 

	fmt.Printf("j的地址是:%v\n",&j)
	fmt.Printf("j的内容是：%v\n",j)
	fmt.Printf("j的数据类型为：%T,j的空间大小为:%d\n",j,unsafe.Sizeof(j))

	fmt.Printf("j的内容的内容是:%v\n",*j)
}